75000-75015 Built 1951 Swindon
75016-75019 Built 1952 Swindon
75020-75024 Built 1953 Swindon
75025-75029 Built 1954 Swindon
75030-75049 Built 1953 Swindon
75050-75052 Built 1956 Swindon
75053-75064 Built 1957 Swindon
75065-75079 Built 1955/56 Swindon
